Scared with twins

Ladisha
I'm 19weeks and 4 days with twin boys for the past 4 days I have been sick with an upper respiratory infection and I have been having allot of pressure but not so much pain and no bleeding I went to the ER cause it was hard to breathe but unfortunately it's nothing they can do when your pregnant so they checked to make sure my twins were alright and they were the ultra sound showed they were moving and both heart rate were fine then they did a pelvic exam to check my cervix due to the pressure I was having and I was told I dilated 1cm they told me to go home and rest and not to worry but I can't help but to worry I'm only 19 weeks I don't want to go into labor right now please any advice would help I'm very terrified